Water Heaters - Clunking water heater
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vdaily89
10-26-05, 05:29 PM
I have a 40 gallon gas water heater. For about a month now when we run water there is some loud clunking that goes on. It continues for a few minutes after the water is done running. Any ideas on what it is? BTW, we have really hard water where I live.
thanks,
Vince
thanks,
Vince
Sharp Advice
11-04-05, 05:38 AM
Water heaters that make the noises you are hearing is often caused by excessive sediment deposits on the bottom of the tank. The noise is often and commonly referred to as "percolating."
Which means the heat transfer to the water must pass through a layer of sediment, which causes the water to actually boil close to the bottom of the tank.
Thus the boiling is the method and means used to pass the heat thru the sediment to heat the water inside the tank. This also causes a very high concentration of heat at the base of the tank.
To help resolve the problem, tank flushing is required. See the posted topic at the topic of the forums list of questions. Read the tank flushing instructions and flush the tank.
Tank flushing usually but not always resolves the problem. Tanks that have not been flushed yearly may have an excessive amount of sediment which has already baked onto the bottom of the tank.
Older tanks also acquire this problem despite frequent flushing and tanks used in high sediment water supplies. If flushing does not resolve the problem, tank replacement is the only solution.
If you need further assistance, use the reply button to add any additional information or questions, etc. Using this method also moves the topic back up to the top of the list automatically.
Here is that link to draining and flushing:
WATER HEATER DRAINING AND FLUSHING INFO:
http://forum.doityourself.com/showt...threadid=134483
Web Site Host, Gas Appliances Topic Moderator & Multiple Forums Moderator. Energy Conservation Consultant & Natural Gas Appliance Diagnostics Technician.
Personal Reminder:
Buckle Up & Drive Safely.
"The Life You Save, May Be Your Own."
Which means the heat transfer to the water must pass through a layer of sediment, which causes the water to actually boil close to the bottom of the tank.
Thus the boiling is the method and means used to pass the heat thru the sediment to heat the water inside the tank. This also causes a very high concentration of heat at the base of the tank.
To help resolve the problem, tank flushing is required. See the posted topic at the topic of the forums list of questions. Read the tank flushing instructions and flush the tank.
Tank flushing usually but not always resolves the problem. Tanks that have not been flushed yearly may have an excessive amount of sediment which has already baked onto the bottom of the tank.
Older tanks also acquire this problem despite frequent flushing and tanks used in high sediment water supplies. If flushing does not resolve the problem, tank replacement is the only solution.
If you need further assistance, use the reply button to add any additional information or questions, etc. Using this method also moves the topic back up to the top of the list automatically.
Here is that link to draining and flushing:
WATER HEATER DRAINING AND FLUSHING INFO:
http://forum.doityourself.com/showt...threadid=134483
Web Site Host, Gas Appliances Topic Moderator & Multiple Forums Moderator. Energy Conservation Consultant & Natural Gas Appliance Diagnostics Technician.
Personal Reminder:
Buckle Up & Drive Safely.
"The Life You Save, May Be Your Own."